Question

How do you factor #y=3x^3 - 9x^2 #?

Answer 1

`y=3x^2(x-3)`

Explanation:

`y=3xx x xx x xx x - 3xx3xx x xx x`

Separate the common terms, `3xx x xx x=3x^2` and write the remaining terms in brackets:

`=>y=3x^2(x-3)`